gdb/testsuite/gdb.cp/exception.exp

   1 # Copyright 1997, 1998, 2004, 2005, 2007, 2008, 2009, 2010, 2011
   2 # Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file is part of the gdb testsuite.
  18 # tests for exception-handling support
  19 # Written by Satish Pai <pai@apollo.hp.com> 1997-07-23
  20 # Rewritten by Michael Chastain <mec.gnu@mindspring.com> 2004-01-08
  21
  22 # This file used to have two copies of the tests with different
  23 # compiler flags for hp-ux.  Instead, the user should set CXXOPTS
  24 # or run runtest with --target_board unix/gdb:debug_flags="..."
  25 # to choose the compiler flags.
  26 #
  27 # The interesting compiler flags are: "aCC +A -Wl,-a,-archive" .
  28 # Static-linked executables use a different mechanism to get the
  29 # address of the notification hook in the C++ support library.
  30
  31 # TODO: this file has many absolute line numbers.
  32 # Replace them with gdb_get_line_number.
  33
  34 set ws  "\[\r\n\t \]+"
  35 set nl  "\[\r\n\]+"
  36
  37 if $tracelevel then {
  38     strace $tracelevel
  39 }
  40
  41 if { [skip_stl_tests] } { continue }
  42
  43 # On SPU this test fails because the executable exceeds local storage size.
  44 if { [istarget "spu*-*-*"] } {
  45         return 0
  46 }
  47
  48 set testfile "exception"
  49 set srcfile ${testfile}.cc
  50 set binfile ${objdir}/${subdir}/${testfile}
  51
  52 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
  53      untested exception.exp
  54      return -1
  55 }
  56
  57 # Start with a fresh gdb
  58
  59
  60 gdb_exit
  61 gdb_start
  62 gdb_reinitialize_dir $srcdir/$subdir
  63 gdb_load ${binfile}
  64
  65 # Set a catch catchpoint
  66
  67 gdb_test "catch catch" "Catchpoint \[0-9\]+ \\(catch\\)" \
  68     "catch catch (before inferior run)"
  69
  70 # Set a throw catchpoint
  71
  72 gdb_test "catch throw" "Catchpoint \[0-9\]+ \\(throw\\)" \
  73     "catch throw (before inferior run)"
  74
  75
  76 # The catchpoints should be listed in the list of breakpoints.
  77 # In case of a statically linked test, we won't have a pending breakpoint.
  78 # Hence we allow for both an address or "<PENDING>". If we ever become able
  79 # to tell whether the target is linked statically or not, we can be more
  80 # precise and require exact output.
  81 set addr "\(<PENDING>|$hex\)"
  82 set re_head     "Num${ws}Type${ws}Disp${ws}Enb${ws}Address${ws}What"
  83 set re_2_bp     "1${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception catch"
  84 set re_3_bp     "2${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception throw"
  85
  86 set name "info breakpoints (before inferior run)"
  87 gdb_test_multiple "info breakpoints" $name {
  88     -re "$re_head${ws}$re_2_bp${ws}$re_3_bp\r\n$gdb_prompt $" {
  89         pass $name
  90     }
  91     -re ".*$gdb_prompt $"
  92       {
  93         fail $name
  94       }
  95 }
  96
  97 gdb_test "tbreak main" "Temporary breakpoint 3.*" \
  98     "Set temporary breakpoint at main"
  99
 100 set ok 0
 101 gdb_run_cmd
 102 gdb_test_multiple "" "Run to main" {
 103     -re "Temporary breakpoint 3,.*$gdb_prompt $" {
 104         pass "Run to main"
 105         set ok 1
 106     }
 107 }
 108
 109 if { !$ok } {
 110     continue
 111 }
 112
 113 set addr "$hex"
 114 set re_head     "Num${ws}Type${ws}Disp${ws}Enb${ws}Address${ws}What"
 115 set re_2_bp     "1${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception catch"
 116 set re_3_bp     "2${ws}breakpoint${ws}keep${ws}y${ws}$addr${ws}exception throw"
 117
 118 set name "info breakpoints (after inferior run)"
 119 gdb_test_multiple "info breakpoints" $name {
 120     -re "$re_head${ws}$re_2_bp${ws}$re_3_bp\r\n$gdb_prompt $" {
 121         pass $name
 122     }
 123     -re ".*$gdb_prompt $"
 124       {
 125         send_user "\n---\n$expect_out(buffer)\n---\n"
 126         fail $name
 127       }
 128 }
 129
 130 # Get the first exception thrown
 131
 132 set name "continue to first throw"
 133 gdb_test_multiple "continue" $name {
 134     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\), throw location.*${srcfile}:30, catch location .*${srcfile}:50\r\n$gdb_prompt $" {
 135         pass $name
 136     }
 137     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception thrown\\).*\r\n$gdb_prompt $" {
 138         pass $name
 139     }
 140 }
 141
 142 # Backtrace from the throw point.
 143 # This should get to user code.
 144
 145 set name "backtrace after first throw"
 146 gdb_test_multiple "backtrace" $name {
 147     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_throw\[\[:>:\]\].*#\[0-9\]+${ws}$hex in foo \\(i=20\\) at .*${srcfile}:\[0-9\]+\r\n#\[0-9\]+${ws}$hex in main \\(.*\\) at .*${srcfile}:\[0-9\]+\r\n$gdb_prompt $" {
 148         # Either __cxxabiv1::__cxa_throw or __cxa_throw can be printed
 149         # depending on debug info presence.
 150         pass $name
 151     }
 152 }
 153
 154 # Continue to the catch.
 155
 156 set name "continue to first catch"
 157 gdb_test_multiple "continue" $name {
 158     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\), throw location.*${srcfile}:30, catch location .*${srcfile}:50\r\n$gdb_prompt $" {
 159         pass $name
 160     }
 161     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\).*\r\n$gdb_prompt $" {
 162         pass $name
 163     }
 164 }
 165
 166 # Backtrace from the catch point.
 167 # This should get to user code.
 168
 169 set name "backtrace after first catch"
 170 gdb_test_multiple "backtrace" $name {
 171     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_begin_catch\[\[:>:\]\].*#\[0-9\]+${ws}$hex in main \\(.*\\) at .*$srcfile:\[0-9\]+\r\n$gdb_prompt $" {
 172         pass $name
 173     }
 174 }
 175
 176 # Continue to second throw.
 177
 178 set name "continue to second throw"
 179 gdb_test_multiple "continue" $name {
 180     -re "Continuing.${ws}Got an except 13${ws}Catchpoint \[0-9\]+ \\(exception thrown\\), throw location.*${srcfile}:30, catch location .*${srcfile}:58\r\n$gdb_prompt $" {
 181         pass $name
 182     }
 183     -re "Continuing.${ws}Got an except 13${ws}Catchpoint \[0-9\]+ \\(exception thrown\\).*\r\n$gdb_prompt $" {
 184         pass $name
 185     }
 186 }
 187
 188 # Backtrace from the throw point.
 189 # This should get to user code.
 190
 191 set name "backtrace after second throw"
 192 gdb_test_multiple "backtrace" $name {
 193     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_throw\[\[:>:\]\].*#\[0-9\]+${ws}$hex in foo \\(i=20\\) at .*${srcfile}:\[0-9\]+\r\n#\[0-9\]+${ws}$hex in main \\(.*\\) at .*${srcfile}:\[0-9\]+\r\n$gdb_prompt $" {
 194         pass $name
 195     }
 196 }
 197
 198 # Continue to second catch.
 199
 200 set name "continue to second catch"
 201 gdb_test_multiple "continue" $name {
 202     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\), throw location.*${srcfile}:30, catch location .*${srcfile}:58\r\n$gdb_prompt $" {
 203         pass $name
 204     }
 205     -re "Continuing.${ws}Catchpoint \[0-9\]+ \\(exception caught\\).*\r\n$gdb_prompt $" {
 206         pass $name
 207     }
 208 }
 209
 210 # Backtrace from the catch point.
 211 # This should get to user code.
 212
 213 set name "backtrace after second catch"
 214 gdb_test_multiple "backtrace" $name {
 215     -re ".*#\[0-9\]+.*\[\[:<:\]\]__cxa_begin_catch\[\[:>:\]\].*#\[0-9\]+${ws}$hex in main \\(.*\\) at .*$srcfile:\[0-9\]+\r\n$gdb_prompt $" {
 216         pass $name
 217     }
 218 }
 219
 220 # That is all for now.
 221 #
 222 # The original code had:
 223 #
 224 #    continue to re-throw ; backtrace
 225 #    continue to catch    ; backtrace
 226 #    continue to throw out of main
 227 #
 228 # The problem is that "re-throw" does not show a throw; only a catch.
 229 # I do not know if this is because of a bug, or because the generated
 230 # code is optimized for a throw into the same function.
 231 #
 232 # -- chastain 2004-01-09